Questions tagged [file-compression]

Software that compresses or shrinks the file size of other files (or interacts with other software doing so).

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Open-source alternatives to UPX for compressing executable files

I'm looking for open-source alternatives to UPX (Ultimate Packer for eXecutables). Reasons: Part of the UPX code is protected by copyright. UPX embeds information about the creators' copyrights into ...
AvidCoder's user avatar
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Transparent PDF compressor?

I would like to be able to use a PDF compressor where I know exactly what it's doing and can control exactly what it's doing. It doesn't need to be the fanciest or have absolutely the most extreme ...
AnonMoos's user avatar
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Archive format that allows for global ("solid") compression, but with the ability to efficiently extract individual files

I want to: Archive millions of tiny files ... Each file is about 1-3KB of size Plain UTF-8 text Contents largely similar (logfiles) ... into larger archives ... Say, 1 days worth of files in each ...
Vilx-'s user avatar
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Rust library for rank and select support on succinct int vectors, e.g. wavelet trees

Is there a Rust library for Wavelet Trees or any other data structure that supports fast and memory-efficient rank and select on succinct integer vectors? succinct, succint_rs and rsdict only seem to ...
Konrad Höffner's user avatar
3 votes
2 answers
67 views

Free tool to compress images to a given file size

Is there a tool (preferably a webapp) to which you upload an image (let's say 100Kb) and specify the desired reduced file size (let's say 50Kb), then download the result which should be roughly the ...
LWC's user avatar
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lossless audio enconding

I am looking for a lossless audio encoder to archive huge amount of audio files. Because it is for archive the encoding and decoding speed is not important at all (in a reasonable way - do not suggest ...
amit's user avatar
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2 answers
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Video compression tools

I am using a software - https://www.microsoft.com/en-us/p/screen-recorder-lite/9mvbdsj392f2#activetab=pivot:overviewtab for recording audio and video. It's a screen recorder for windows. But it ...
joseph's user avatar
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Gratis and GUI program to create separate compressed file archives (e.g., .zip or .7z) for each selected file/directory

I'm looking for a GUI, free program for Microsoft Windows 7 or 10 that can create separate compressed file archives (e.g., .zip or .7z) for each selected file/directory. For example, if I select 10 ...
Franck Dernoncourt's user avatar
1 vote
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151 views

Need a Windows tool that can compress a file to create a .Z file

Unix has a compress program based on the LZW compression algorithm that creates a file with a ".Z" extension. I would like to be able to do that on Windows. I was surprised to see that 7-...
kc2001's user avatar
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libarchive is broken for RAR on Linux - any similar C library alternatives?

I'm using libarchive to read and scan through a generic set of archives (mostly 7z, RAR and zip). The library interface is quite simple and although supports only linear archive processing, doesn't ...
Emanuele's user avatar
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video compressor specifically for compression videos

The usual zip and 7zip don't do much good when it comes to image or video compression. Anyone knows any good software that is meant to compressor videos or images?
juztcode's user avatar
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Which Free Video Compressor do you recommend for Windows?

I'm using Windows 7 (I know, quite old), but I'd like to find a video compressor to downsize all of my videos that I put on the computer from my cellphone (they take too much space). Any ...
Peanuts's user avatar
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Utility to change password of ZIP compressed & encyrpted files

Please recommend a gratis Windows tool that will allow me to change the password of existing ZIP compressed archive files. I don't need a "cracking" tool. I know the existing password. I ...
End Anti-Semitic Hate's user avatar
3 votes
1 answer
447 views

Is there a screen recording software that is simple and creates low file sizes?

My workplace is a school adapting to the pandemic. We need a tool on Windows that will let teachers record their voices while they show the screen, either showing a slide presentation or showing how ...
Village's user avatar
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732 views

C++ loading compressed file to memory and reading/extracting particular files within

I am looking for a lossless archive/compression library that supports random-access extraction of particular files, and would also like to perform such extraction in C++, meaning from C++ executable: ...
AOK's user avatar
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1 answer
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Autoextract zip files on Windows like Mac OS

Is there a program I can get for Windows that simply extracts zip files I open in the same place with its own folder just like Mac OS?
Jay Wick's user avatar
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Software to compress PDF

I would like to compress a PDF file. The PDF size should be smaller than 1MB. Do you know a software that allow to compress PDF files to a given compressed size?
birdman's user avatar
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Achieve better compression ratio on 7zip compression

I use an open source compression software named Peazip running on a Intel Core i5-8250U @1.6 GHz processor. However, I have tried compressing files to 7z many times but the compression ratio is hardly ...
Sibasish Mishra's user avatar
1 vote
2 answers
171 views

PDF Compression: Lossless or near-lossless compression options?

I'm looking for a tool for macOS (Windows and Linux would also be nice) that will compress PDFs with a lossless or near-lossless methodology. There is an interesting discussion for ImageOptim PDF ...
ylluminate's user avatar
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0 answers
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Windows program for automatic image compression

I have a folder that has a lot of images within side it and new images are often put inside there. However, the images are of high quality and they do not need to be. Thus taking up a lot of extra ...
obiwanconobi's user avatar
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Tool to convert large Mozilla LZ4 files to plain text?

TL;DR: I am seeking for software to turn Mozilla's headacheful LZ4 garbage into usable plain text. There is already a scrounger for Mozilla LZ4, which even is supposed to work offline when saving the ...
neverMind9's user avatar
1 vote
0 answers
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Which distro supporting ZFS is currently most performant?

I am setting up a networked system for acquiring a large number of streamed camera images (up to 3GB/s of raw tif files; up to 2TB per experimental acquisition). The host that acquires the data will ...
Wiktor Phillips's user avatar
0 votes
1 answer
2k views

What is an alternative for tar (compressor)?

I have a 200MB file. I want to compress this into a small file. Now I'm using TAR. but it only compresses word-like files, not binary files. So, I'm searching an alternative tool for tar to compress ...
Gobikrishnan R's user avatar
2 votes
0 answers
16 views

Windows Explorer that open popular zip files like normal files and folders

Noted that the Windows Explorer in Windows 8, 8.1, 10 are able to open zip files and treat them like normal files and folders. So, was wondering if there is a better than Windows Explorer that ...
user275517's user avatar
1 vote
1 answer
166 views

Android tools for unzipping corrupt zip files

I had searched for some tools that can unzip files from a large corrupt zip file on android. I couldn't, so now I learned how to use ZipInputStream in java. Now I want to share the fruit of my tiny ...
KYHSGeekCode's user avatar
1 vote
1 answer
116 views

General-purpose CLI compression program with good integrity check in Linux

As the title says I am in search for a good, defined as the best available, general-purpose command-line compression program with good integrity check in Linux. These archives will be used for long ...
Vlastimil Burián's user avatar
1 vote
1 answer
64 views

A single cmd app to support multiple compression format

As you know by default there is one program (command) for each compression format and unfortunately, some of them use a different command for data extraction. I would like to memorize a single app ...
Real Dreams's user avatar
2 votes
0 answers
16 views

Any library in Java or Python for storing lots of small objects in AWS S3 "intelligently"?

I need to store a lot objects in S3, and I need to be able to address each object fairly quickly (maximum of 2 GETs to find one object) and I don't want to be wasteful when comes to the number of PUT ...
Alex R's user avatar
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on-the-fly compressed volumes for Windows

I am looking for a freeware Windows tool that provides on-the-fly compressed virtual drives stored in files (similar to TrueCrypt disks). The virtual drive should offer random access and should be ...
eadmaster's user avatar
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6 votes
1 answer
117 views

Compressing many similar large images?

I'm dealing with a large archive of satellite images of the Earth, each one taken 15 minutes apart over the same area, therefore they are quite similar to each other. Two contiguous ones look like ...
Camilo Rada's user avatar
1 vote
0 answers
61 views

Zipster alternative for macOS High Sierra

Zipster integrates support for browsing compressed files on macOS Finder but it's been discontinued. The website says: Support for this product has ended. There are known problems with this ...
rraallvv's user avatar
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6 votes
2 answers
1k views

Which compression utility should I use for an extremely large plain text file?

I have a lot of data. A lot. My data file is a little under 2TB (terabytes) of line-separated plain text records, each about 4 or 5 KB (totaling to a few hundred million records). I'm prioritizing ...
JesseTG's user avatar
  • 356
1 vote
0 answers
159 views

How to convert to/from a CorelDraw .WI wavelet-compressed image file

I have a large sample of .WI images I need to convert to e.g. JPEGs, but the format now seems defunct. The mimetype is image/wavelet. The compression algorithm was developed by Summus, a US company ...
jtlz2's user avatar
  • 111
2 votes
1 answer
71 views

Differential compression software

Suppose these: Everyone in the world (or at least my audiences) has downloaded the file ubuntu-16.04.3-desktop-amd64.iso with md5sum of 0d9fe8e1ea408a5895cbbe3431989295 which is approximately 1.5GB ...
F.I.V's user avatar
  • 121
2 votes
1 answer
62 views

Open source smart extract

I would like a program that: If top layer of archive is just single item, then extract here If top layer of archive is several items, then extract to new folder I see these: http://softwarerecs....
Zombo's user avatar
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0 votes
1 answer
829 views

Transparent file compression apps for macOS

I'm looking for app for macOS Sierra and above which would allow me to compress files transparently in the background to increase free space which works for macOS Sierra and above. Basically I'm ...
kenorb's user avatar
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3 votes
5 answers
1k views

Software to compress PDF files

The other similar question is not related to my question and didn't provide answers at all. So I'm looking for a freeware or opensource software that can compress my 1GB+ PDF files into a reasonable ...
Freedo's user avatar
  • 199
0 votes
2 answers
49 views

Secure File Storage

I have some file I want to store that I do not want to be readable with out proper software or conversion. I used to ZIP file until Windows 7 Started to scan the zip file and "Remove Viruses". The ...
Name Last's user avatar
1 vote
0 answers
303 views

C++ library to compress files with password protection

I would like to ask for any recommendation for good C++ library to compress files/folders (usually the libs are stream oriented without good file support). Currently we use minizip (based on zlib) ...
Martin's user avatar
  • 11
2 votes
0 answers
22 views

different methods for rar archives [closed]

When I pack my data to .rar archive, I usually make backup original data. But last time I forgot about backup, and when I opened .rar file, I got - Invalid or corrupt authenticity information. Someone,...
Smilin231's user avatar
1 vote
1 answer
81 views

Reducing the file size of scanned letters

History This is a follow up to and old question from StackOverflow scale and reduce colors to reduce file size of scan Unfortunately convert of imagemagick is too slow (Sometimes our system receives ...
guettli's user avatar
  • 187
-1 votes
1 answer
74 views

What's the best Windows archive tool (WinRAR, WinZip, etc)? [closed]

I have some data that has been downloaded with the extension .zip or .gz. I always have had WinRAR software installed on my computer and I was always able to uncompress such files. But last night I ...
Sepideh Abadpour's user avatar
1 vote
1 answer
1k views

Minification: Renaming/shortening CSS selectors?

I've been looking for tools that minify HTML, CSS and JS together. With that being said, I don't mean just whitespace and comment removal, but also shortening of selectors. For example <div ...
Neek Sandhu's user avatar
3 votes
1 answer
98 views

Is there a unified wrapper for python's archive compresson packages?

Python supports a lot of archive formats. I personally know of tar (which supports gzip and bz2), zlib, rar, zip, lzma and 7z. I find it a bit tedious and error-prone to do auto-detection of these ...
con-f-use's user avatar
  • 131
1 vote
1 answer
80 views

Need a Software to compress videos

I have many videos that I want to compress. I've tried 7z. But it could only marginally compress a 188 MB video to a 184 MB archive. Are there any better available alternatives?? I'm willing to ...
SoftwareUser's user avatar
2 votes
1 answer
73 views

Software to compress, and browse, a website with 1000s of pages

I have a local copy of a website with 98,000 pages (I just checked). The uncompressed size is somewhere around 8gb. I'd like to put it all in one file maybe, and compress it, then just use a standard ...
Bulrush's user avatar
  • 218
2 votes
1 answer
811 views

PDF compressor software to host on your own server

Goal A web-based open source software to compress PDF files, to submit files via a browser, but to install on my own Linux server and use its processing power. Requirements A web interface. A ...
Paulo Coghi's user avatar
1 vote
1 answer
195 views

Ultimate tool to transfer bytes (copy files, compress, upload, etc)

It will be a long story :) For the last decade the engineering team (us) have maintained homebrew tool for deployment engineering team written in C# to transfer files across datacenters and recently, ...
kreuzerkrieg's user avatar
3 votes
1 answer
82 views

Software that can archive files in a directory into multiple zip files, each holding 10 files

I'm looking for archive software with these requirements: Ability to archive files into multiple .zip files, each holding a max of 10 files Compatible with Windows 10
Lafix's user avatar
  • 243
1 vote
0 answers
22 views

Reed-Solomon encoder/decoder

Do you know any free software performing real Reed-Solomon coding/decoding? Or maybe a library that can be utilized to encode and/or decode files with Reed-Solomon algorithm?
newt's user avatar
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